I am trying to update the user record in my database in the callback function of oauth2. FetchError

exports.callback=async (req,res)=>{
    const code=req.query.code;
    
    try{
        const response=await axios.post(process.env.TOKEN_ENDPOINT,{
            code,
            client_id:process.env.CLIENT_ID,
            client_secret:process.env.CLIENT_SECRET,
            redirect_uri:process.env.REDIRECT_URI,
            grant_type:'authorization_code',
        });

        const {id_token, access_token}=response.data;
        
        const userInfo=await axios.get('https://www.googleapis.com/oauth2/v3/userinfo',{
            headers: { Authorization: `Bearer ${access_token}` }
        });

         // Checking if user exists in Xata database 
        let user = await xata.db.users.filter({ email: userInfo.data.email }).getFirst();
        console.log(user);
        // If user doesn't exist, creating a new user in Xata
        if (!user) {

        user = await xata.db.users.create({
            user_id: Date.now(),
            username: userInfo.data.name,
            password_hash: null,
            email: userInfo.data.email, 
        });
        console.log("now "+user);
        }

        // Generating JWT with Xata user ID and other user info
        const userToken = generateToken({ id: user.xata_id, ...userInfo.data }); 

        res.cookie('token',userToken,{httpOnly:true});

        res.redirect(process.env.FRONTEND_URL);
    }
    catch(err){
        console.error('Error in OAuth callback:', err);
        res.status(500).send("Error during OAuth callback")
    }
};

Error in OAuth callback: FetcherError: Internal Error (Request ID: d38e69c1-681f-9f4a-9b1c-58923c0aa05a)
    at file:///C:/Users/athar/Documents/GitHub/mango-store/backend/node_modules/@xata.io/client/dist/index.mjs:2414:15